The accounting firm described in Exercise 28 is interested in providing opportunities for its auditors to gain more expertise in statistical sampling methods. They wish to compare traditional classroom instruction with online self-paced tutorials. Auditors were assigned at random to one type of instruction, and the auditors were then given an exam. The table shows how the two groups performed. What do you conclude? (Assume the assumptions for inference are met.)

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Programn SD Mean Traditional 296 745 112 Online 275 72.9 12.3